Music DVD burning question

I recently downloaded a couple of free high res tracks from HDTracks. I burned them to a DVD-R using a free version of Ashampoo 6 Burning Studio. For burning music that could be played on players other than a computer I had one choice: Create a WMA CD/DVD/Blu-ray Disc.

I added the high res files to the list to be burned and it said that the files were WAV files which is what HDTracks said they were. The size of the files on the disc that I burned is the same as the files I downloaded. The disc plays on my Oppo BD-95 and my PS Audio PerfectWave transport and DAC but not other DVD players. The PerfectWave transport gives the correct resolution for the two tracks, 176.4/24 and 192/24.

What kind of disc did I burn? A data DVD, a music DVD, a DVD-A, or what? Is this a good way to collect high res files until I get a server system going or am I ending up with DVD-Rs that aren't full high res?

Thanks for any help.